any card with 1 gig or more of ram will run 2 screens.
whats the rest of your specs including psu size.
psu- seasonic 660w platinum
Motherboard- gigabyte z77n-wifi
cpu- i5 3570k
cpu cooler- intel RTS2011LC
Memory- Kingston 8gb hyperx lovo
Graphics card- looking for one so i can game and edit (BF3, Crisis, watch dogs, etc.)
Main storage- WD1002FAEX